CD stepper stand for laser show

Laser projector based on lost project done by Fred Sena
http://web.archive.org/web/20141105063629/http://fredsena.com/home-made-laser-projector/

Instructable:
http://www.instructables.com/id/Laser-Show-From-CD-Stepper-Motors/

https://www.youtube.com/watch?v=TnhZNOEqfEQ